The world's first named heat wave hit Seville, Spain, pushing temperatures past 110degrees Fahrenheit and earning the most severe tier (级别) in the city's new heat wave ranking system. Heat wave "Zoe" has brought burning temperatures to the southern part of the country for the last few days, particularly the area where Seville is located.
Zoe is the first named heat wave to hit Seville since it officially used a new system last month to name and rank heat waves, similar to hurricanes (Climate wire, June 22). Only the most severe heat waves get names, named this year in reverse (颠倒的) alphabetical order. After Zoe come Yago, Xenia, Wenceslao and Vega. The worst of the heat is expected to begin tapering off (减弱) today, but it has already posed a significant risk to human health.
Seville's new ranking system takes a three-tiered approach to categorizing heatwaves, with Category 1 as the lowest ranking and Category 3 as the most severe. The system has specific criteria for each category, involving not only daytime temperatures, but also nighttime lows, humidity and the heat's expected effects on human health.
Spain has been struggling with extreme temperatures for much of the summer already. High heat broke local records around the country last month, and the first two weeks of June were the hottest on record in the country. Across the continent, this year was Europe's second hottest June on record. Extreme heat returned again earlier this month. Cities across Spain broke monthly temperature records and wildfires broke out on the landscape.
Climate change is causing heat waves to become more frequent, more severe and longer-lasting all over the world, increasing the risks to human health. Seville's new naming and ranking system is intended to raise public awareness about the dangers of extreme heat.
